Blockchain: You re Doing it Wrong
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- Griffin Wilkinson
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1 Blockchain: You re Doing it Wrong
2 Blockchain Technologies will negatively affect YOU!
3 Source: Interesting Read: "The ring of Gyges: Investigating the future of criminal smart contracts.", Juels et al., ACM SIGSAC 2016
4 Source: Kevin Hong,
5
6 Blockchain: Fear of Missing Out currently > 100k Euro
7 The Mauve Revolution
8 Common Misconceptions About Bitcoin Users are anonymous Every participant has to mine The Blockchain is encrypted Transactions are final No Trust is Required
9 Common Misconceptions About Bitcoin If Blockchain is good for Bitcoin, it must be good for
10 Scott Adams,
11 What is a Blockchain? Still no agreed upon definition the actual ledger Linked list with hash pointers instead of pointers NIST Narayanan et al. Nakamoto Consensus Garay et al., Pass et al., etc. its complicated.
12 What is a Blockchain? Is GIT a Blockchain?
13 Blockchain A distributed ledger based on an authenticated data structure
14
15 [2] [3] Do I need a Blockchain? PoS/X [2] BFT [3] * Source: Wüst and Gervais, *You could accept Cryptocurrencies as a payment option
16 I need a Blockchain What could possibly go wrong? Source:
17 You re Doing it Wrong: Do not use Proof-of-Work Security assumptions do not hold for small systems Only makes sense in a permissionless P2P setting If PoW is needed, the design is (probably) flawed Also: Do not implement your own consensus protocols Well researched and tested protocols have been available for around 20 years If consensus fails badly your whole system will be affected/broken
18 You re Doing it Wrong: Do not roll your own Cryptography Also: Do not use cryptography you do not fully understand
19 You re Doing it Wrong: KISS - Keep it simple, stupid What was needed: What was implemented: simple time-stamping service to prove a document existed at some point in the past decentralized prediction market with an exponentially growing number of tokens that use user-definable Turing-complete spending rules to vote in a decentralized autonomous organization (DAO) on the ordering of time-stamp events which are represented by non-fungible but infinitely divisible quantum resistant time-stamp tokens.* *Of course the corresponding "white paper" (dark blue text on a black background - it was hard to write it should be hard to read) is so monumental in every conceivable metric that a second ICO had to be started for a new inter-galactic file system which will eventually be capable to actually host the white paper in its entirety.
20 You re Doing it Wrong: Cryptoeconomics is your Enemy, not your Friend Source: WarGames, 1983
21 You re Doing it Wrong: Privacy is hard to get right Source:
22 Are Most Blockchain Technologies Bound to Fail? Roy Lichtenstein, source:
23 We choose to go to the Moon in this decade and do the other things, not because they are easy, but because they are hard John F. Kennedy
24 Nicholas A. Stifter 10C6 4FD1 19B1 B399 4A2B 6D7B 5EB9 556A A9
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